Free tool

Email deliverability checklist

Everything to check before a cold email campaign: SPF, DKIM, DMARC and blacklists checked live for your domain, then a checklist for mailboxes, volume, your list and the email itself.

Check before you send

Checked live
5 MX, SPF, DKIM, DMARC, blacklists
Checklist
18 mailbox, list, email and launch checks

Lookups go from your browser to Cloudflare's public DNS over HTTPS. Your ticks stay in this browser.

1. Domain records and blacklists

Checked live

Checks MX, SPF, DKIM, DMARC and blacklists from your browser. Nothing is stored.

2. Domains and mailboxes

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  • Email infrastructure calculator
  • Warmup schedule planner
  • Email infrastructure calculator
  • Email infrastructure calculator
  • Warmup schedule planner

3. Your list

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4. The email

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  • Spam word checker
  • Subject line tester

5. Launch and watch

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How it works

From DNS records to the first send

Run it before every new campaign and on every new sending domain.

  1. 01

    Check the domain

    Enter the domain you send from. MX, SPF, DKIM and DMARC are looked up live, and the domain and its mail servers are checked on email blacklists.

  2. 02

    Tick the rest

    Mailboxes, volume, your list and the email cannot be read from DNS. Tick each one, with a free tool to help where there is one.

  3. 03

    Test inbox placement

    A real placement test needs live mailboxes, so it runs in ZicReach: Deliverability, then Inbox placement, by mailbox provider.

FAQ

Questions, answered

Short answers about the email deliverability checklist.

What is email deliverability?

The share of your email that reaches the inbox rather than spam or a bounce. It depends on your domain's records (SPF, DKIM, DMARC), your reputation (blacklists, complaints, bounces), how much you send per mailbox and what the email says.

Is this an inbox placement test?

No. A placement test needs real mailboxes and real sends, which a web page cannot do. This checklist covers what you can check before sending. In ZicReach, Deliverability, then Inbox placement shows how your mail does at Google, Microsoft, Yahoo and others.

How many cold emails can one mailbox send a day?

ZicReach recommends at most 20 cold emails a day per mailbox, after about 3 weeks of warmup, and at most 3 mailboxes per domain. Spread more volume over more mailboxes and domains.

What bounce and spam complaint rates are safe?

Keep bounces under 2% by verifying every address, and spam complaints under 0.1%. Gmail asks bulk senders to stay well under 0.3% complaints.

Are my ticks saved?

Only in this browser, so you can come back to the list. Nothing is sent to ZicReach, and Clear my ticks removes them.

Is the domain I enter stored?

No. The lookups go from your browser straight to Cloudflare's public DNS resolver. ZicReach does not see or keep the domain.

Every check, run for you.

Start free with 100 credits. ZicReach checks your domains, warms every mailbox for free and shows inbox placement by provider.

100 free credits when you sign upNo card requiredFree Email Warmup, always

100free credits on every new account, no card required